autoboxing autounboxing issues

/*  1. By using autoboxing. If it is required to create a new wrapper object, the compiler won’t create any new object,  if already an object is
 present in the fallowing cases.Boolean and Byte.For the integer and short
 if the value is less than or equal to 127.For the long of the value is
 less than or equal to 127 l.Character object ranges from 0 to 127  */


class Scases
{
public static void main(String arg[])
{
        Integer I1= 10;
    Integer I2= 10;
    System.out.println(I1==I2);   //true
    Integer I3= new Integer(10);
    System.out.println(I1==I3);    //false
    Integer I4= 127;
    Integer I5= 127;
    System.out.println(I4==I5);   //true
    Integer I6= 128;
    Integer I7= 128;
    System.out.println(I6==I7);   //false

           //Similarly 
        Short s1=127;
        Short s2=127;
        System.out.println(s1==s2);  //true

        Short s3=128;
        Short s4=128;
        System.out.println(s3==s4);   //false

    Long l1=300l;
    Long l2=300l;
    System.out.println(l1==l2);    //false
}
}